| Countries With No Rivers | 0 | - | 4.96 | 76,026 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,375 |
| Countries with Fjords | 0 | - | 4.93 | 100,198 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,072 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,791 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,170 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,740 |
| North Sea Countries | 0 | - | 4.92 | 86,602 |
| Black Sea Countries | 0 | - | 4.87 | 60,341 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,015 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,109 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,953 |
| Megadiverse Countries | 0 | - | 4.97 | 133,896 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,701 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,227 |
| African Great Lakes | 0 | - | 4.82 | 65,149 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,791 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,603 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,308 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.88 | 86,412 |
| Capitals by River | 0 | - | 4.55 | 48,234 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,914,620 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,336 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,485 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,065 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,451 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,805 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,397 |
| Rivers of the United States | 0 | - | 4.93 | 65,512 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,295 |
| Landlocked Countries | 0 | - | 4.99 | 413,539 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,484 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,716,083 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,029 |
| Biggest City by River | 0 | - | 4.41 | 52,695 |
| Landforms by Country | 0 | - | 4.52 | 51,915 |
| Countries That Border Russia | 0 | - | 4.98 | 458,902 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,060 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,624 |
| Countries Bordering France | 0 | - | 4.83 | 399,040 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,036 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,835 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,096 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,813 |
| Island Countries | 0 | - | 4.99 | 707,592 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,559 |
| Himalayan Countries | 0 | - | 4.95 | 135,331 |
| Andean Countries | 0 | - | 4.94 | 82,810 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,205 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,188 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,884 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,591 |
| Danube Countries | 0 | - | 4.97 | 71,072 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,751 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,531 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,457 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,379 |
| European Landlocked Countries | 0 | - | 4.99 | 145,743 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,193 |
| Countries with the Most Species | 0 | - | 4.99 | 95,238 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,330 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,197 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,365 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,952 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,571 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,947 |
| Countries in the Alps | 0 | - | 4.86 | 116,812 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,554 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,245 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,997 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,413 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,153 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,993 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,567 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,743 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,260 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,044 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,193 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,039 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,449 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,734 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,746 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,050 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,635 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,252 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,763 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,248 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,661 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,599 |
| Largest Countries By Category | 0 | - | 4.97 | 156,746 |
| Countries by Countries | 0 | - | 4.96 | 62,250 |
| Top 10 European Countries by Coastline | 0 | - | 4.89 | 137,850 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,149 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,151 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,758 |
| One Border Countries - Shape Quiz | 0 | - | 4.84 | 64,504 |
| Merged Country Shapes Quiz #1 | 0 | - | 4.93 | 59,024 |
| Merged Country Shapes Quiz #2 | 0 | - | 4.92 | 59,827 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,370 |
| Northernmost Countries | 0 | - | 4.99 | 357,689 |
| Countries of South America | 0 | - | 5.00 | 914,595 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,318 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,848,085 |
| "Land" Countries | 0 | - | 4.98 | 333,635 |
| Countries Bordering India | 0 | - | 4.98 | 162,599 |
| Countries that Border China | 0 | - | 4.96 | 261,810 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,449 |
| Countries that Border Poland | 0 | - | 4.99 | 171,345 |
| Merged Countries #2 | 0 | - | 4.96 | 98,474 |
| Merged Countries #6 | 0 | - | 4.91 | 72,705 |
| Merged Countries #7 | 0 | - | 4.92 | 81,955 |
| Rivers A-Z | 0 | - | 4.35 | 32,684 |
| Mekong River Countries Empty Map Quiz | 0 | - | 4.80 | 52,981 |
| Sea in the Answers | 0 | - | 4.10 | 48,557 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,962 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,598 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,163 |
| Countries with Megacities | 0 | - | 4.99 | 246,827 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,084 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,947 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,498 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,835 |
| Countries by Official Language | 0 | - | 4.95 | 192,760 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,108 |
| Countries in their Native Language | 0 | - | 4.99 | 196,625 |
| Independence from Whom | 0 | - | 4.99 | 209,674 |
| Subdivisions by Country | 0 | - | 4.86 | 50,063 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,735 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,789 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,918 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,425 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,857 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,645 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,993 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,938 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,140 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,210 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,739 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,560 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,411 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,489 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,500 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,668 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,020 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,321 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,336 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,980 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,944 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,735 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,847 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,056 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,269 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,940 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,332 |
| Widest Countries East to West | 0 | - | 4.92 | 128,600 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,216 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,203 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,562 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,682 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,624 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,034 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,050 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,579 |
| Countries with Double Letters | 0 | - | 4.97 | 93,378 |
| Countries that End in N | 0 | - | 4.94 | 156,773 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,671 |
| Countries with Six Letters | 0 | - | 4.93 | 210,348 |
| Countries with W | 0 | - | 4.97 | 158,217 |
| Countries with Z | 0 | - | 4.98 | 287,864 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,542 |
| Countries That End in U | 0 | - | 4.95 | 119,513 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,531 |
| Countries that End in O | 0 | - | 4.92 | 158,550 |
| Countries that End in R | 0 | - | 4.87 | 118,270 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,856 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,004 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,313 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,485 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,004 |
| Countries That End in Y | 0 | - | 4.90 | 185,197 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,362 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,678 |
| Countries that End in I | 0 | - | 4.94 | 134,408 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,186 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,190 |
| Countries That End in NIA | 0 | - | 4.92 | 109,004 |
| Countries That End in BIA | 0 | - | 4.92 | 147,709 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,053 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,480 |
| Countries That End in RIA | 0 | - | 4.93 | 126,075 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 109,999 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,170 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,514 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,883 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,349 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,926 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,116 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,638 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,811 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,802 |
